add require libs; install script

daemon/_metadata.py

@@ -0,0 +1,152 @@
+# -*- coding: utf-8 -*-
+
+# daemon/_metadata.py
+# Part of ‘python-daemon’, an implementation of PEP 3143.
+#
+# Copyright © 2008–2015 Ben Finney <ben+python@benfinney.id.au>
+#
+# This is free software: you may copy, modify, and/or distribute this work
+# under the terms of the Apache License, version 2.0 as published by the
+# Apache Software Foundation.
+# No warranty expressed or implied. See the file ‘LICENSE.ASF-2’ for details.
+
+""" Package metadata for the ‘python-daemon’ distribution. """
+
+from __future__ import (absolute_import, unicode_literals)
+
+import json
+import re
+import collections
+import datetime
+
+import pkg_resources
+
+
+distribution_name = "python-daemon"
+version_info_filename = "version_info.json"
+
+def get_distribution_version_info(filename=version_info_filename):
+    """ Get the version info from the installed distribution.
+
+        :param filename: Base filename of the version info resource.
+        :return: The version info as a mapping of fields. If the
+            distribution is not available, the mapping is empty.
+
+        The version info is stored as a metadata file in the
+        distribution.
+
+        """
+    version_info = {
+            'release_date': "UNKNOWN",
+            'version': "UNKNOWN",
+            'maintainer': "UNKNOWN",
+            }
+
+    try:
+        distribution = pkg_resources.get_distribution(distribution_name)
+    except pkg_resources.DistributionNotFound:
+        distribution = None
+
+    if distribution is not None:
+        if distribution.has_metadata(version_info_filename):
+            content = distribution.get_metadata(version_info_filename)
+            version_info = json.loads(content)
+
+    return version_info
+
+version_info = get_distribution_version_info()
+
+version_installed = version_info['version']
+
+
+rfc822_person_regex = re.compile(
+        "^(?P<name>[^<]+) <(?P<email>[^>]+)>$")
+
+ParsedPerson = collections.namedtuple('ParsedPerson', ['name', 'email'])
+
+def parse_person_field(value):
+    """ Parse a person field into name and email address.
+
+        :param value: The text value specifying a person.
+        :return: A 2-tuple (name, email) for the person's details.
+
+        If the `value` does not match a standard person with email
+        address, the `email` item is ``None``.
+
+        """
+    result = (None, None)
+
+    match = rfc822_person_regex.match(value)
+    if len(value):
+        if match is not None:
+            result = ParsedPerson(
+                    name=match.group('name'),
+                    email=match.group('email'))
+        else:
+            result = ParsedPerson(name=value, email=None)
+
+    return result    
+
+author_name = "Ben Finney"
+author_email = "ben+python@benfinney.id.au"
+author = "{name} <{email}>".format(name=author_name, email=author_email)
+
+
+class YearRange:
+    """ A range of years spanning a period. """
+
+    def __init__(self, begin, end=None):
+        self.begin = begin
+        self.end = end
+
+    def __unicode__(self):
+        text = "{range.begin:04d}".format(range=self)
+        if self.end is not None:
+            if self.end > self.begin:
+                text = "{range.begin:04d}–{range.end:04d}".format(range=self)
+        return text
+
+    __str__ = __unicode__
+
+
+def make_year_range(begin_year, end_date=None):
+    """ Construct the year range given a start and possible end date.
+
+        :param begin_date: The beginning year (text) for the range.
+        :param end_date: The end date (text, ISO-8601 format) for the
+            range, or a non-date token string.
+        :return: The range of years as a `YearRange` instance.
+
+        If the `end_date` is not a valid ISO-8601 date string, the
+        range has ``None`` for the end year.
+
+        """
+    begin_year = int(begin_year)
+
+    try:
+        end_date = datetime.datetime.strptime(end_date, "%Y-%m-%d")
+    except (TypeError, ValueError):
+        # Specified end_date value is not a valid date.
+        end_year = None
+    else:
+        end_year = end_date.year
+
+    year_range = YearRange(begin=begin_year, end=end_year)
+
+    return year_range
+
+copyright_year_begin = "2001"
+build_date = version_info['release_date']
+copyright_year_range = make_year_range(copyright_year_begin, build_date)
+
+copyright = "Copyright © {year_range} {author} and others".format(
+        year_range=copyright_year_range, author=author)
+license = "Apache-2"
+url = "https://alioth.debian.org/projects/python-daemon/"
+
+
+# Local variables:
+# coding: utf-8
+# mode: python
+# End:
+# vim: fileencoding=utf-8 filetype=python :